<!DOCTYPE html>
<html lang="en" xmlns="http://www.w3.org/1999/xhtml">
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=721920
-->
<head>
  <title>Test for Bug 721920</title>
  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
  <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
  <style type="text/css">

svg text { word-spacing: 1em; }

  </style>
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=721920">Mozilla Bug 721920</a>
<p id="display">
  <svg xmlns="http://www.w3.org/2000/svg" width="400" height="300">
    <g lang="zh-Hans">
      <text id="s0" y="40" style="font-size: 0">汉字</text>
      <text id="s4" y="80" style="font-size: 4px">汉字</text>
      <text id="s12" y="120" style="font-size: 12px">汉字</text>
      <text id="s28" y="160" style="font-size: 28px">汉字</text>
    </g>
  </svg>
</p>
<div id="content" style="display: none">
  
</div>
<pre id="test">
<script class="testbody" type="text/javascript">
//<![CDATA[

/** Test for Bug 721920 **/

SimpleTest.waitForExplicitFinish();

var elts = [
  document.getElementById("s0"),
  document.getElementById("s4"),
  document.getElementById("s12"),
  document.getElementById("s28")
];

function fs(idx) {
  // The computed font size actually *doesn't* currently reflect the
  // minimum font size preference, but things in em units do.  Hence
  // why we use word-spacing here.
  // test_bug401046.html uses margin-bottom instead, but there's an
  // SVG bug that prevents that working in SVG (bug 728723).
  return getComputedStyle(elts[idx], "").wordSpacing;
}

SpecialPowers.pushPrefEnv({'clear': [['font.minimum-size.zh-CN']]}, step1);

function step1() {
    is(fs(0), "0px", "at min font size 0, 0px should compute to 0px");
    is(fs(1), "4px", "at min font size 0, 4px should compute to 4px");
    is(fs(2), "12px", "at min font size 0, 12px should compute to 12px");
    is(fs(3), "28px", "at min font size 0, 28px should compute to 28px");

    SpecialPowers.pushPrefEnv({'set': [['font.minimum-size.zh-CN', 7]]}, step2);
}

function step2() {
    is(fs(0), "0px", "at min font size 7, 0px should compute to 0px");
    is(fs(1), "7px", "at min font size 7, 4px should compute to 7px");
    is(fs(2), "12px", "at min font size 7, 12px should compute to 12px");
    is(fs(3), "28px", "at min font size 7, 28px should compute to 28px");

    SpecialPowers.pushPrefEnv({'set': [['font.minimum-size.zh-CN', 18]]}, step3);
}

function step3() {
    is(fs(0), "0px", "at min font size 18, 0px should compute to 0px");
    is(fs(1), "18px", "at min font size 18, 4px should compute to 18px");
    is(fs(2), "18px", "at min font size 18, 12px should compute to 18px");
    is(fs(3), "28px", "at min font size 18, 28px should compute to 28px");

    SpecialPowers.pushPrefEnv({'clear': [['font.minimum-size.zh-CN']]}, SimpleTest.finish);
}

//]]>
</script>
</pre>
</body>
</html>

